Combined guard and hanger for pulleys



K. M. ROSS].

COMBINED GUARD AND HANGER FOR PULLEYS.

APPLICATION HLED JAN-11,1921.

Patented Jan. 31,- 1922 l nve nCor.

KciTI M. R0651.

To all whom it may concern:

KARL M. nossnor SCHENECTADY; NEW YO "COMBINED GUARD AND HANGER nonPULLEYS.

Be it known that 1, 1mm, M. Ross'r, a

citizen of the United States; residingat Schenectady, county ofSchenectady, State of New York, have invented certain new and usefulImprovements in Combined Guards and Hangers for Pulleys, of which thefollowing is'a specification. v j.

The present invention relatesto comb ned guards and hangers for pulleys,and one specifieapplication is'their use in clothes line pulleys. Theobject of the'inventlon .15 to providea device ofthe character describedof improved construction.

For a description of what I believe to be novel and my invention,attention is directed.

to the accompanyingdescription and the claims appended thereto.

In the drawing, which illustrates one of made of sheet steel and'isprovided withone or more ribs 12extending lengthwise-there theembodiments of my invention, Fig. is a-v1ew in SlClB' elevat on of aclothes line pulley; Fig. 2 is a detall exploded View of one of thejoints between the guard and hanger, and Figs. 3 and 4% are detailviewsshowing a reinforcing piece for the hangerj 5 "indicates a sheave pulleywhich may be of any suitable construction. Itcompnses a rim 6 which isconcave in cross'sectionas is usual and a number of spokes 7. Bypreference the wheel and its spokes are ma'deof sheet steel because sucha construction is light inweight and not (easily broken even by roughhandling. The parts can also be easily coated with a durable material toprevent rusting. j

V In a device of this kind it is of the greatest importance to providea-rigid guard and hanger and one which is light inweight and at the sametime possesses great strength. That is to say, they must be stiffenought to prevent the wheel from rubbing on them This also meansa;r1g1d rela when in use. tion between the guard and hanger if bestresults are to be obtained. T 0. this end the guard 8 is made of a stripof'sheet steel -ivhich completely encircles the wheel and hasoverlapping ends to form a joint, the latter coinciding with the regionof the wheel axis. In order to increase the strength of the guard'it isprovided with at least one, and preferably two ribs 9, throughout itslength. The rib or ribs may advantageously be formed by dies before thestrip is bent to enclose the wheel. It is necessary to interlock theoverlapping ends of the guardin order to prevent distortion or rackingat the Specificaticn of Letters Patent. 1 Pate t d J 3h 31 192 IApplication filed January 11, 1921.. Serial No. 436,584; i

joint. 1T0 attainthis result, the ribs atone end of the guard,'asindicated at'lO, are made ust enough smaller than thoseat'theoppositeends so that when the ends of the.

guard are overlapped the smaller rib-s will snugly fit into the recessesof the larger will be in firm 0on ribs and the main bodies tact.

Referring now to thehanger, it is also importantthat'it shallbe" strongand alsoloe securely fastened. to the guard-sol that all angularmovement of one w-ith'respect to the other about the wheel axis isprevented. Also that the joints between the guard and hanger heof such acharacter and the hanger of such a nature that the wheel cannot, when inuse, distort the hanger and cause rub-Q hing.

0 this: end the U shaped hanger 11 is also of. These ribs are'purposelystopped-just short of the ends so as to providewaiclear space for theformationofone and prefer- .ably,.two cross ribs 13; The cross ribs areof suchsize that when. the guard and hanger i are assembled they willfit ornest with'the" rib or ribs 9 on the uppermost part of the guardand the body willfirmly contact with the adjacent body of the hanger.Stated another way, theleg has a projection-on one face and a recesson'the other which recess is ust large enoughto recelve and snuglycontain the aligned projection on the guard.

teringholes in the guard and hanger, after which it is riveted over'atboth ends to formretaining heads. The pivot securelyiholds the partsfromspreading in an axial direction and the interlocking ribs on theguard hholdthe overlapping ends thereof in such manner as to prevent theguard from bueklingorthe ends, from being displaced laterally. Thepivot-also holds thecross ribs on the hanger in firm engagement with'theribs on the guard with the result that there can be no angular movementof one part on the other, or bending of the hanger which would allow.the wheel to rub.

I may and preferably do turn the endsof the hanger inward as indicatedvat and cause them to make a snug fit with the outer edges of the guard.T he inturned edges of the hanger in addition to preventing sidewisedisplacement of the overlapping ends of the guard serve to relieve thestrain on the pivot to a certain extent when the pulley is --in use andthe hanger is subjected to heavy tension asit frequently is when theclothes line is heavily loaded or the line shrinks, or'both. V 7

To prevent wear on the outer end of the hanger a reinforcing piece 16 isprovided 7 which is setinto a narrow recess or groove formed in thehanger at the bend. T his is held in place by projections or tongues 17formed by a punching or cutting operation.

Inaecordanee with the provisions of the Patent Statutes, I havedescribed the princif ple of operation ofmy invention, together with theapparatus which I now consider to represent the bestembodiinent thereof,but I desire to have itnnderstood thatthe apparatus, shown is onlyillustrative and that the invention may be carried out by other means. V

VVhat I claim as new and desire to secure by Letters Patent of theUnited States, is:

- 1. A pulley, a guard which encloses it and has overlapping ends, saidoverlapping ends having projections, a projection on onev of said endsfitting into a recess formed by a projection on the other end, and meansfor holding the projection in the recess.

,2. A pulley, a guard which encloses the "wheel and has overlappingends, said guard.

wheel andhas overlapping ends, l'aid overlapping ends having parallelprojecting strengthening ribs which extend lengthwise 0f the guard, theribs on one endfitting into the recesses" tornied by the other ribs,means for holdingthe ribs in said recesses, and a hanger, the ends ofwhich have transverse, parallelrecesses to receivesaid ribs. 5. Apulley, a guard which encloses it and located in the recess,

t. A pulley, a guard which. encloses the,

has a pair of overlapping ends, one of said ends havinga projection andthe other end a recess, said pro ectlon fitting into the recess to forma. joint, a hanger having'two legs, 00-

opera-ting projections and recesses on the guard and legs to unite theparts, and a pivot for the pulley.

6. A pulley, a guardwhich encloses it and has overlapping ends,projections on both of said ends one of which fits into the other, asecond projection on the side of the guard opposite said ends, a hangerfor the pulley the legs of which have projections, the recesses formedby said projections fitting over the projections on the guard, andK163119120? holding said projections gagement. V I V 7. A,pulley, aguard whiehencloses 1t and in interlocking enhas overlapping ends,interlocking ribs on said ends, ribs on the side of the gnardoppositethe joint, a hanger having legs, ribs formed in the legs which extendparallel with those on the guard and interloclr with them, andca pivotfor the wheel that also holds said ribs in interlockin en a ement.

to t: b

8. A pulley, a guard which encloses it and has overlapping ends, meansfor holding said ends against sidewise displacement, a hanger havinglegs which straddle the wheel, turned over ends for the legs whichengage one side of the guard and assist intransinitting strains from thewheel to the hanger. and a pivot for the wheel which is seated r in" theguard. I V

9. A pulley, a sheet metal guard which BIIClOSGSlt, and has overlappingends, said guard being ribbed from end to-end, the ribs on one endfitting into the recesses formed by the ribs on the other end, a hangerwhich has lengthwise ribs and also'cross ribs, the cross ribs fittingover the ribs on-the guard, and a pivot for the wheel that also holdsthe rings of the guard and hanger in interlocking engagement.

10. A wheel having a guard-which en-,

closes it, a U-s'haped hanger having a recess at the bend, areinforcingpiece which is and projections on the hanger which enga e theends of the piece to hold it in place. I

11. A. wheel having a guard which encloses it, 'a U-shaped hanger, areinforcing 'piecewhich'is located in the bend of the U,

and a "pair of projections onone part which engage the other to holdsaid piece in place.

Inwitness whereof, Ihave hereunto set my hand this 8th dayof January,1921..

KARL M; nossii i

